https://youtu.be/i2YSRlasgEQ
THE HOLY GRAIL OF HEATING. Mass flow rate. A MUST for all heating engineers!
Get a free, personalised estimate in seconds


Smart thermostats vary significantly in how they integrate with heat pumps. Choosing one that supports load compensation can cut running costs measurably.
Read more
Heat Geek CEO Aadil Qureshi joins Octopus, British Gas, EDF and Aira on the Renewable Heating Podcast to discuss how heat pumps can now cost less than boilers.
Read more
A first-hand look at the Viessmann Vitovalor hydrogen fuel cell boiler — and why its owner ultimately replaced it with a heat pump.
Read more
Most lockshield valves suffer from poor valve authority, meaning nearly all flow control happens in the last 3/4 turn. Here's what that means for balancing.
Read more
Adam shares practical shortcuts for correctly sizing a heat pump or boiler before you buy, helping you avoid common oversizing mistakes.
Read more
A complete guide to low loss headers — what they are, how hydraulic separation works, and whether your heating system actually needs one.
Read moreJoin thousands of homeowners and installers getting our latest updates, guides, and news on heat pumps.